Verbseoul.
하다 verb (adj)
일정하다iljeonghadato be fixed

To say to be fixed politely in the present tense, use 일정해요 (eel-chuhng-hae-yoh). Below is the full conjugation of 일정하다 across the three tenses and three everyday speech levels.

Conjugation table

TenseCasual (반말)Polite (요)Formal (합니다)
Present
일정해
eel-chuhng-hae
일정해요
eel-chuhng-hae-yoh
일정합니다
eel-chuhng-hahm-nee-dah
Past
일정했어
eel-chuhng-hae-ssuh
일정했어요
eel-chuhng-hae-ssuh-yoh
일정했습니다
eel-chuhng-hae-sseum-nee-dah
Future
일정할 거야
eel-chuhng-hahl- -guh-yah
일정할 거예요
eel-chuhng-hahl- -guh-yae-yoh
일정할 겁니다
eel-chuhng-hahl- -guhm-nee-dah

Other useful forms

Command Polite (세요)
일정하세요
eel-chuhng-hah-sae-yoh
Suggestion / Let's Polite (요)
일정해요
eel-chuhng-hae-yoh
Question Polite (요)
일정해요?
eel-chuhng-hae-yoh-?
Connective “and” — (고)
일정하고
eel-chuhng-hah-goh
Conditional “if” — (면)
일정하면
eel-chuhng-hah-myuhn
Noun form — (기)
일정함
eel-chuhng-hahm